You complain but you do not explain what is your problem or your need, what you've tried that does not work. So please, formulate your question in a way we can understand.

You have several questions about Swift / C++ integration. Did you read this "Mixing Swift and C++ Using Xcode": https://www.swift.org/documentation/cxx-interop/project-build-setup/

Just I idea, I did not test. Try with onReceive modifier instead of onChange.

I wanted to test your code, but it does not compile. Is it the complete real code ?

Here is what I get (for an old project), in Xcode 16.1ß1 What you have in User Defined is in the general section for me. And no reference to beta version. Did you try creating a new project to see what you get ?

Have a look at this other thread: https://forums.developer.apple.com/forums/thread/761374

Thanks for feedback. I hope someone will be able to explain ! Don't forget to close the thread, good continuation.

I never saw it. If you change code, keeping a minimum code, is it still there ? Is it still there if you create a new project ?

I'm not entirely satisfied with the outcome of this code. What is not satisfying ? What do you get ? What do you expect exactly ? Why don't you apply the opacity to the background of the icon ? Note that if you could not publish such an app on the AppStore if you copy an Apple icon.

This question is about a product, not a development issue. So you'd better ask on Apple support: https://discussions.apple.com/welcome

A definition of minimal was that if it can be a web site, then it is probably under limit. Guideline 4.2 Minimum Functionality Your app should include features, content, and UI that elevate it beyond a repackaged website. If your app is not particularly useful, unique, or “app-like,” it doesn’t belong on the App Store. If your App doesn’t provide some sort of lasting entertainment value or adequate utility, it may not be accepted. If I understand correctly, that's the case for your app. That does not mean it is not useful but is not rich enough to be in the Appstore. So you have 2 options: stay as a web site (or a web app) enrich your app to provide some sort of lasting entertainment value and exploit specific features of iPhone (eg: showing the results in the Dynamic Island). A good tag would be "App Review "

There is effectively something weird here. At first change, Picker does not react. That seems to be an old bug (or undocumented behaviour): https://forums.developer.apple.com/forums/thread/688685 In addition of the solution you found, I implemented the Spacer().onChange trick and it works: struct swiftuiTestApp: App { @State private var value = "a" var body: some Scene { WindowGroup { Menu("menu \(value)") { Picker("", selection: $value) { Text("A").tag("a") Text("B").tag("b") Text("C").tag("c") } .pickerStyle(.inline) .onChange(of: value) { oldValue, newValue in print("onChange", oldValue, newValue) } } Spacer().onChange(of: value) { oldValue, newValue in print("Spacer onChange", oldValue, newValue) } } } } Here is the log: Spacer onChange a b // First change does not trigger picker onChange, but triggers Spacer() Spacer onChange b c // next change does trigger picker onChange, and Spacer() onChange b c You should file a bug report.

Don't post many articles but be clearer in the explanation.   My account is a new download account What do you mean ? Developer account ?   I attached Apple's policy There is no attachment in the post   but when the error occurred What request is it ? Submission to AppStore ? When exactly does the error occur ? When you archive the app ? When you submit for review ? During the review by reviewer ? Please show a screenshot with the error message

I understand that the spam detection is pretty simple: there is a title that looks the same, but they probably don't go into details. So, I don't if that would work, but I would advise to post a comment for reviewer in the submission where you explain what you write here. Something like this (must be simple and crystal clear): There are 3 versions of this app (app-xxx, the one being submitted) and app-yyy and app- zzz. app-yyy and app-zzz address different public, because of the level of play and feature some specific capabilities, such as … Up to you to find a few features, which may be pretty simple, like integrated tutorial, voice messages, … And include the same message for the other versions submissions.

Simulators are only available at Apple's site. So, if not there it is because it'll never exist. Why do you need it specifically ? 2 options: test on device use iOS 18 simulator.